Apparently Pippa also looks hot from the front! What does Duchess Kate have to say about her sister’s antics?

Here’s something that’s sure to please the more-than-100,000 members of the Pippa Middleton Ass Appreciation Society on Facebook: New pictures have surfaced of the 27-year-old partying with a boxer-clad gentleman — and she’s wearing nothing but a bra and skirt!

It seems Duchess of Cambridge Kate Middleton‘s younger sister really was quite the party girl — she was named the No. 1 Society Singleton by the UK’s Tatler magazine in 2008 — but has toned down her wild behavior in recent years.

Unfortunately, it’s not yet known when the photographs were taken (a second leaked photo reveals Pippa in a tiny white dress, which according to the UK’s Daily Mail, was made of toilet paper.)